Actuating and supporting mechanism for the knotting tables of oriental-rug looms



Dec. 18, 1928. 1,695,360

M. A. BAUER ACTUATING AND SUPPORTING MECHANISM FOR THE KNOTTING TABLES 0F ORIENTAL RUG LOOMS Filed May 18, 1927 2 Sheets-Sheet 1 Dec. 18, 1928. 1,695,360

M. A. BAUER ACTUATIHG AND SUPPORTING MECHANISM FOR THE KNOTTING TABLES 0F ORIENTAL RUG LOOKS Filed May 18; 1927 2 Sheets-Sheet 2 Patented Dec. 18, 1928.

UNITED STATES Lessee fPArs'r orric.

MARIUS BAUER, F WGRCESTER, MASSACHUSETTS, ASSIGNOR TO M. Pl". WHITTALL ASSOCIATES, A VOLUNTARY 15.53%

GCIATION OE MASSACHUSETTS.

ACTUATING 'AND SUPPORTTNG MECHANISM FOR THE KNOTTING TABLESOF ORIENTAL-RUG LOOMS.

such looms as previously manufactured, the

mech mm for supperting anductnating the knottmg table has been extremely complicated and expensive and has occupied a very ohjectionable location above the woven fabric throughout the width of the loom.

It is the general object of my invent-ion to improve the supporting and actuating mechanism for the hnotting table, simplif the same and changing; the location thereof that the woven fabric will. not be exposed to injury by falling oil or dirt from said mechanism.

A further object is to reduce the number of parts and to correspondingly reduce the expense of manufacture, while increasing the efiiciency and convenience in operation of the machine.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawings in which Fig. 1 is a front elevation of certain parts of an oriental rug or carpet loom embodying my improvements;

Fig. 2 is an. end elevation thereof, looking in the direction of the arrow 2 in Fig. 1

Figs. 3, 4 and 5 are detail views showing successive positions of certain cutting mem hers to be described; and

Fig. 6 is a front elevation of certain additional actuating mechanism.

Referring particularly to Figs. 1 and 2, I have indicated a knotting table 10 having supporting arms 11 at each end thereof, said arms being clamped at their upper ends to a. rock shaft 12 supported in bearings 13 formed on brackets 14. The brackets are secured on a carriage 15 mounted on wheels or rollers 16 and supported on a fixed frame member 17. The carriage l5-is moved endwise a limited distance during the operation of the 100111 in order to insert successive yarn tufts along the 1927. Serial No. 192,446.

same trzn'isverse lOW L SQc connecting the knotting table 10 to the cross shaft 12, said supports being merely to prevent sagging of the intermediate parts of the table, but not being relied upon for movement of the table. Links 20 are also pivotally connected at their lower ends to the rear portion of the table 10 and at their upper ends to hell cranks 21, actuated through a link 22 from a lever 23 (Fig. 6) having a roll 24- positioned in the groove 25 of a cam 26. As the cam rotates, the table is given a rocking movement for a purpose to be described.

Each of the supporting arms 11 is provided with a bracket (Fig. pivoted on the cross shaft 12 and having a. cam roll 31 positioned in the groove 32. of a cam 83 mounted on. a cam shaft 8%. The shaft Se is supported in bearings 35 in the brackets l i, and extends parallel to the rock shaft 12 and at the rear thereof. Each bracket 30 is provided with a slot 36 and is secured by a bolt 36 inadjusted angular relation to its supporting arm 11. v

The cam shat 8st and cams 33 move longitudinally with the carriage 15, and the shaft 34 is rotated through a bevel gearB'Z keyed The gear. 37

thereto but slidable thereon. may thus remain in fixed axial position while the shaft moves longitudinally with the carriage l5.

I have indicated warp threads VJ passing through a reed l0 on a lay 41, and I have indicated the woven fabric F asbeing drawn down over cloth roll 42. The pile yarns Y are mounted in a. dividing head 43, fully shown and described in the Renard patent, and the yarns are selectively drawn therefrom in a direction parallel to the lay by grippers or pliers (not shown).

A series of knives 4-5 aremounted on the rear portion of the knotting table. and the movement of the table is such that the knives 45 passbelow and rearward of the pile yarns Y, as indicated in Fig. 3. The table 10 is then rocked by the cam 26, connected through the links 20, to bring the knives up under the pile yarns as indicated in Fig. l; The knotting tableis then swung rearward while at the same time the knives 45 are moved for- -ward. This causes the parts to assume the position shown in Fig. 5, substantially Without lateral displacement of the pile yarns. The knives are then given a forward cutting movement, severing each short length of p l yarn, w ich is th reafter twi ed Q knotted by the mechanism carried by the knotting table 10.

For more detailedexplanation of the operation of the knives 45 and other associated mechanism, reference is again made to the Renard patent.

From the preceding description, it will be seen that 1 have provided direct-and simple supporting and actuating mechanism for the lrnotting table said mechanism being; locatet entirely at the ends of said table and at'the rear oi: the supporting ar ns. By this constrnction I leave the liront oi the n'i achine clear and free and I also avoid the poss hility oi injury to thcfahrich she dropping of oil or dirt irointhe table operatingine Having thus described 1n}; invention and the advantages thereof 1 do 1 ot wish to he liinited to the details herein dis loscd otherwise than as sot iiorth in the claims, hot what I claim is: i r 1. iii an oriental rug loo n, a ln'iottin g table having; yarn severing and 'yarn an mechanism mounted-thereon,s lyar I ing mechanism ope prior to the operationo'i the yarn tvvr 'ng' inechanis n, a reek shaft,aplurality o'fsnp ortins arin int; from said rocli shai an "to i n c table pivotallv o o rinecte tha can; shaft rottitafbly mounted parallelto andfat are rear of said rockers-inciting on d can shaft and operating connections between each earn and the associated supporting arm by which said table is oscillate clfi 2. oriental rug; loonn lznotting table having yarn severing and yarn twisting; ine chanisin mounted thereon, said yarn severs' me ha m n is P r to as Ora -ation of the yarn twisting inechanisin rock shaft, a plnral it of supporting arms idepending from said rock shaft and to which said tahleis pivotally connected, a cam shaft rotatably mounted parallel to and at the rear f sa d ac shah, Qa s 9 a d haft? an r int ng onne tion tram 1 Cam to tain of said supporting arms, said connections lacingpositionedentirelyat the ends of said lrnotting table and behind said supporting arms.

3. In an orienta-Lrng 100111, a knotting table havin yarn severing and yarn,twistiigiginechanisin inonntcd thcrec .,"said fiarn scvering mechanism operating prior to the operation of the yarn tivisting niechanisin rock shaft, a' plurality of supporting arlns depending from said rock shaftandto irhich M1 lile pivotally connected,acanrshafti atahl i nionnted parallel to and at the rear. of said rock shaft, Cains on said Cain shaft, and operatingconnectionshet ve enemies and ie associated supporting arms by which "said table is oscillated, said connections including L ets pivoted on said ro'cli sliaft'and each s by one oi said cam, and me to seciire each bracket toi sassociated su jpoi .l

ll relation the in. In an oriental rug ooing a kno no, table an; yarnsercringand yer-e twisting inechin men. red thereon, said yarnseverii crating prior to the operation (it arm in adjusted ans i rn twisting nechanisinfa rock shaft,

Mani-Us r par an; 

